First of all, Qin L is equipped with the latest fifth-generation DMI technology, which is also its biggest highlight. Compared with the fourth-generation system, the fifth-generation DM-i system has been upgraded mainly in the following aspects. The first is the improvement of engine thermal efficiency. The thermal efficiency of the SnapCloud 1.5L engine currently equipped by Qin L has reached 43.04%, and the industry-leading level is 45%. Through some improvement measures, it is expected that the thermal efficiency of the fifth-generation DM-i engine will exceed 45%, which should not be a big problem. The second is the optimization of the working strategy of the hybrid system, which is one of the main means to reduce fuel consumption. BYD has a large number of user groups and samples in this area, so it has more advantages in optimizing. The ultimate goal is to improve power performance and reduce fuel consumption. According to previous judgments, Qin L is expected to reach a fuel consumption level close to 4L/100km, which is improved compared to Qin Plus.

Secondly, compared with Qin PLUS-DM-i, Qin L has also been upgraded in terms of chassis and suspension system. First of all, the CTB battery chassis is adopted, which is one of the important features of the new P5 platform. It can improve the space utilization of the battery, reduce the weight of the battery, and leave more space for the chassis. On this basis, Qin L will be equipped with front MacPherson and rear four-link suspension systems, which have better structure and support performance than Qin PLUSDM-i's rear torsion beam suspension. The comfort will also be better!

Third, the EV version of Qin L is equipped with a dual-motor intelligent four-wheel drive system, with a pure electric range of 610km. This data has exceeded many pure electric models of the same level and is even comparable to the Tesla Model 3. Qin L's battery uses BYD's independently developed lithium iron phosphate blade battery, which has the characteristics of high energy density, high safety, and high cycle life. Qin L also supports fast charging function, which can restore 80% of the power in half an hour, greatly shortening the charging time and improving travel convenience.

As a popular model at this Beijing Auto Show, the launch of Qin L complements Qin PLUS, allowing BYD Dynasty to fully cover the mainstream sedan market, filling the gap between Qin Plus and Han's main models, and improving the product matrix. .